My ZBook 15 will be 10 years old next February. It's still the machine that pays my bills because it can be upgraded and repaired. I replaced the keyboard myse

My ZBook 15 will be 10 years old next February. It's still the machine that pays my bills because it can be upgraded and repaired. I replaced the keyboard myself many times after the keys worn down (arrows or one on the left.) I upgraded the RAM to its max (32 GB) and replaced all its disks (HDD and DVDRW) with SSDs. It was born with 750 GB, it's 3 TB now. Furthermore its software got better along the years. It feels faster and the fan doesn't spin on much. It was born with Windows 7 which I replaced with Ubuntu 12.04 on the very first day. It's Debian 11 now.